Question

【題目】同義句轉(zhuǎn)換，每空一詞。
（1）Planting trees every year is necessary for us.
for us to plant trees every year.
（2）I spend half an hour doing morning exercises every day.
It me half an hour to morning exercises every day.
（3）They kept on talking until the teacher came in.
They didn't until the teacher came in.
（4）The teacher said, "Don't cheat in exams, children."
The teacher asked the children cheat in exams.
（5）I think that it is important to learn English well.
I think to learn English well.

Answer 1

【答案】
（1）It's；necessary
（2）takes；do
（3）stop；talking
（4）not；to
（5）it；important
【解析】⑴句意：每年種樹對我們來說很有必要。句型：It's+形容詞+for/of sb+to do sth 做某事對于某人來說……，it是形式主語，指代后面的動詞不定式。故填I(lǐng)t's necessary.’
⑵句意：我每天花半個小時做早操。句型：It takes sb time to do sth。故填takes；do。
⑶句意：他們一直在講話，直到老師進來。延續(xù)性動詞+until從句=not+短暫性動詞+until從句。故填stop talking。
⑷句意：老師說：“孩子們，考試別作弊。”ask sb not to do sth請某人別做某事，故填not to。
⑸句意：我認為學好英語很重要。句型：think it+形容詞+to do sth 認為做某事……，it指代不定式，是形式賓語，故填it important。